Image matching, or registration, is the process where two or more images are compared to find corresponding areas or objects. Several different methods are used in the approach of quantizing displacements (e.g. cross-correlation ...

Palsas are peat mounds with a perennially frozen core which are mainly formed due to ice segregation. They are located in bogs in warmer (sporadic and discontinuous) permafrost zones and they are therefore sensitive to ...

In this thesis we present a three-dimensional (3-D) seismic SV-wave speed model for the upper mantle beneath Northern Europe derived from the analysis of fundamental mode Rayleigh waveforms. Selecting recordings with ...

In this study the transgressive-regressive developments and depositional environment of the Frysjaodden Formation in the Central Tertiary Basin, Spitsbergen have been reconstructed. The depositional environment has been ...

Uplift movements, followed by erosion are amongst the main reason of the lack of success in oil discovery. These processes can dramatically affect the petroleum system, in terms of destruction of oil accumulation, and need ...

Conclusion: This study focused on the structure and Late Cretaceous Early Cenozoic tectonic evolution of central part of the Sørvestsnaget Basin. Its location in the southwestern Barents Sea which is close to the ...

Ved å bruke en invers metode kan høydeprofilen av svoveldioksid (SO2) utslippene fra et vulkanutbrudd estimeres. Metoden bruker satellitt observerte SO2 kolonneverdier (AIRS, OMI) og en partikkel dispersjons modell (FLEXPART) ...

This thesis presents results from an AGCM sensitivity study in which the response in the Northern Hemisphere storm tracks to an imposed SST anomaly is investigated. The study was motivated by observational studies cited ...

We decided to take a fresh new look at the historical hydrographic data from the Environmental Working Group-atlas (EWG) in light of the recent dramatic changes, first and foremost to shed light on the cause of the large ...

The aim of this thesis is to investigate and gain better understanding of a new modeling technique called modeling by demigration. Demigration itself can be defined as the inverse of true amplitude migration. This involves ...

The heat capacity of the global ocean is very large compared to the rest of the spheres in the climate system of the Earth. It is therefore reasonable to assume that ocean heat uptake or release would manifest itself in ...

The Helgoland mud area in the German Bight is one of few sediment depocenters in the North Sea. It is therefore a suitable site to study long-term effects of anthropogenic pollution and/or natural environmental change. The ...

Marin seismic acquisition results in signals that are affected by both random and coherent noise. For successful imaging it is important that as much as possible of this noise is attenuated in an early stage of processing. ...

Sea surface profile and reflection coefficient estimates are vital input parameters to various seismic data processing applications. The common assumption of a flat sea surface when processing seismic data can lead to ...

A short range, limited area ensemble prediction system, LAMEPS, is currently in operational use at the Norwegian Meteorological Institute. It employs 3D-Var for 6 hourly data assimilation cycling for analysis of the control ...

In this thesis, transport pathways, temporal trends and seasonality of persistent organic pollutants (POPs) in the Arctic are examined. These pollutants, which can be transported over long distances, constitute a great ...

Aerosols have in recent years been given increased attention due to their effects on climate and health. Drastic reductions in sulphur emissions in Europe during the last two decades have led to a larger relative importance ...

Clouds in the Arctic differ from clouds elsewhere in that they have a net warming effect at the surface. This happens because the longwave (LW) radiation dominates the radiation regime due to large solar zenith angles ...

Sammendrag På Åknes i Møre og Romsdal, Norge, er det i dalsiden av en fjord oppdaget et potensielt fjellskred. Et ras på Åknes kan lage en enorm flodbølge nede i fjorden. Denne flodbølgen vil ødelegge de nærmeste bygdene ...

Svalbard, ei øygruppe i Arktis, vert påverka både av langtransportert og lokal forureining. I denne oppgåva har konsentrasjonar av elementært karbon (EC) i snøen og effekten det har på albedo blitt undersøkt. Eit overslag ...

Seismic 2D datasets and well ties, linked up to previous studies done in the Loppa High area are the major elements of the thesis work. To better resolve the geological history of the paleo-Loppa High area the depositional ...

In this work I have in detailed tried to determine the age of the source rock that is responsible for petroleum impregnation in onshore samples from Novaya Zemlya. I have worked with a selected set of 6 samples. Pilot ...

Abstract Recent advances in hydrological impact studies points that the response of specific catchments to climate change scenario using a single model approach is questionable. Based on this hypothesis, this study was ...

Denne studiens formål var å utvikle et syndrombasert signalsystem som gir et signal ved økt forekomst av en gitt infeksjon i en eller flere av landets kommuner. Infeksjonen og datasettet som ble benyttet var influensa, ...

Vertical seismic profiling is a borehole seismic method that provides valuable and reliable information about the local geological structure; with superior resolution compared to surface seismic. The recorded multicomponent ...

Contaminated sediments in Norway represent a significant problem for the public’s health as well as the environment, especially in urban coastal regions where former harbour areas are converted to residential zones requiring ...

Quartz cement, precipitated as syntaxial overgrowths on detrital quartz grains, is the dominant porosity-destroying process in deeply buried quartz-rich sandstones and has proven to be predominantly a pressure insensitive, ...

Late Jurassic transgressions in the North Sea area developed thirteen genetic stratigraphic sequences containing sand bodies with in the shale dominated Heather and Draupne formations in the South Viking Graben area. ...

Abstract The Nesodden study area is part of the complex Southwest Scandinavian Domain in the Baltic Shield. To investigate its magmatic/metamorphic evolution, and to constrain magma sources, 482 in situ LA-MC-ICPMS U-Pb ...

The quest to unravel and better constrain the crustal architecture and related geological processes of South Atlantic margins underscores the importance of this study. This is true considering the huge economic prospect ...

Some highly atypical oils from Scandinavia have been analysed and compared with some normal oils from the NOCS. The question is whether these atypical oils can represent additional petroleum systems in addition the the ...

Due to its topography and geological history, Norway is subject to high landslide hazard. On the 20th of June, 1996, a submarine land failure near the village of Finneidfjord (Mid-Norway) developed into a retrogressive ...

Orografiske effekter kan påvirke vinden. Saltfjorden er omgitt av fjell og komplekst terreng. For å undersøke hvordan vinden her blir påvirket av topografien ble vinden i fjorden sammenliknet med vinden på Tennholmen fem ...

Abstract A two-layer system with a deep lower layer in a semi-infinite ocean is investigated theoretically. Tidal forcing is applied, and expressions for an internal Kelvin wave are derived. Terms of second order in wave ...

As global warming causes both glaciers and sea ice to decay, increased freshwater flux into the North Atlantic is expected. In addition precipitation at high latitudes is predicted to increase under global warming as well, ...

Snøskred er en av de største naturfarene i Norge, og varsling av snøskredfare er viktig for å unngå skader på mennesker, bygninger og infrastruktur. Denne studiens formål var å vise hvordan romlige analyser ved hjelp av ...

Subsurface storage of carbon dioxide is often considered one of the most promising ways of reducing atmospheric levels of CO2. The safety of the operation is closely related to the performance of caprocks overlying the ...

Til tross for at isskred fra breer sjelden forekommer, utgjør disse en kontinuerlig fare for menneskeliv og infrastruktur lokalisert i nærområdene. Skred fra bratte breer kan forekomme som en naturlig del av ablasjonsprosessen ...

This thesis is a short investigation of cirrus clouds above the ALOMAR observatory at Andøya. Ice clouds are one of the main uncertainties in the cloud effects in atmospheric modelling. Especially ice clouds in the arctic ...

Hygroskopiske aerosolpartikler sveller i fuktige omgivelser. Ammoniumsulfat er et eksempel på en hygroskopisk aerosolpartikkel, og den sveller ikke-lineært ved relativ fuktighet over 81%. Svelling øker den optiske tykkelsen ...

SAMMENDRAG Oppgavens hydrologiske problemstilling er knyttet til Maridalsvassdragets nedbørfelt i Oslo. Det 255 km² store feltet har 26 regulerbare magasiner og er et typisk Østlandsvassdrag med snøsmelteflommer og ...

Oppgaven undersøker bruk av flytalgoritmer for skredforskning, med spesielt fokus på steinskred. Flytalgoritmer er i utgangspunkt et velbeskrevet fenomen innenfor hydrologien, så inspirasjon hentes fra dette fagfeltet. En ...

Abstract The effect of tropospheric ozone as an air pollutant is normally simulated using regional or urban scale computer models, while global models often are used to study the role of ozone as a greenhouse gas. The ...

ABSTRACT Mixed siliciclastic carbonate rocks of Lower Eocene age are studied in the eastern part of the Ainsa Basin, Southern Pyrenees. These deposits generally show an upward coarsening and shoaling trend followed by ...

In this thesis the aim was to investigate the largely unknown potential of coals of the Tettegras Fm. (Billefjord Gr.) in two wells from the Finnmark Platform and to evaluate the generation and expulsion properties of these ...

Literature studies considering the determination of rockfall runout range have shown that the utilization of rigorous physical models yields significantly different results. This is primarily due to the fact that rockfall ...

Fordampningsberegninger for Aursunden (690m.o.h.), Sør-Trøndelag, er utført for fordampningssesongen 2000. Instrumenteringen inkluderte en flåte med en metrologisk stasjon, en metrologisk stasjon nær sjøen, kontinuerlige ...

In this thesis I have studied several factors influencing the time average atmospheric circulation. The study introduced changes to the thermal and orographic forcing by altering and removing the heat sources and topography. ...

Underground structures are less sensitive to seismic shaking compared to surface structures. Several case histories reported damages to underground structures during major earthquake events. The damages are mainly related ...

The Eocene Ainsa Basin is situated in the central south Pyrenees formed by collision of the Iberian plate with the Eurasien plate during Late Cretaceous to early Miocene times. The basin was formed due to movements of the ...

Feltarbeid regnes som en essensiell del av geografiutdanningen. Feltarbeid, førstehåndserfaringer tilegnet i et feltområde, blir beskrevet og diskutert for å gi et innblikk i en av geografiundervisningens viktigste metoder. ...

ABSTRACT This master thesis involves the geological mapping, correlation and interpretation of the major fold-fault scheme and detail fracture analysis with emphasis on determining the structural evolution of the area ...

ABSTRACT The Brumunddal sandstone is located some 150 km north of Oslo in the county of Hedemark in Southeastern Norway. Groundwater is a major resource of water both for consumption and agricultural use in Brumunddal. ...

This thesis concerns the equilibrium climate response to an anthropogenic change in aerosols since pre-industrial times compared to a 63 % increased CO2 level in the atmospheric GCM CAM-Oslo coupled to a slab ocean model. ...

Initial condition will improve the weather forecast and that is the subject in this master thesis. Will weather observations from aircrat improve the weather prognoses in Norway. Forecast have been made for observings ...

The chemical transport model Oslo CTM2 has been used to test two different parameterizations of the black carbon (BC) aerosol. Key uncertainties associated with the representation aerosols in modeling are size distribution, ...

Many areas at the foot of steep rocks are subject to periodic falls as shown by the presence of abundant stone accumulations, called talus. Taluses are relatively common formations that may occur at rather different scales: ...

ABSTRACT The current study reveals the transgressive-regressive sequences and depositional environments of Paleogene Frysjaodden and Hollendardalen formations recorded in the Central Tertiary Basin of Spitsbergen. In ...

In this study 2D and 3D seismic data has been interpreted in a study which covers the western parts of the Hammerfest Basin, in the south-western Barents Sea. The purpose of the thesis has been to study the Middle Jurassic ...

I denne oppgaven ble kalibrerings funksjonene i Photomodeler og Nlhbunt vurdert for bruk innenfor nærfotogrammetriske formål på Universitetet i Oslo. Universitetet i Oslo disponerer et digitalt Canon kamera og et analogt ...

In this study of the Central Spitsbergen Palaeogene, depositional environments and transgressive-regressive developments of the Frysjaodden and Hollendardalen formations have been reconstructed with combined evidence from ...

ABSTRACT Borehole geophysical logging is viable method of determining the water quality and hydrogeological parameters of aquifers. A recent study was conducted to delineate the distribution of formation water salinity ...

Studies have demonstrated that hydrophobic organic compounds (HOC) show strong sorption to black carbon (BC). Therefore presence of BC in HOC contaminated sediment reduces the in situ freely dissolved aqueous concentration ...

Diatom analyses were carried out on two sediment cores, one from the North Labrador Sea and one from Davis Strait, West Greenland, in order to investigate Holocene climatic variability in relation to ocean circulation. ...

Change in glacier extent is a good indication of climate change. Inventories for glaciated areas should therefore be made at certain intervals. For New Zealand a digitized glacial inventory including both the two main ...

Abstract The Norwegian continental shelf is located between 62°N and 69°30 N. It became an area of massive sedimentary outbuilding during the late Cenozoic time when large amounts of glacial sediments were transported ...

Abstract On a sunny, cloudless day we often recognize condensation trails (contrails) behind jet aircrafts as narrow, white stripes. Contrails form as a mixture of warm, humid exhaust gases and colder, drier air exceeds ...

1 Abstract A control run of 150 years for CCSM2 has been performed at the Norwegian Meteorological Institute. In this run the external forcing(especially radiation) were held constant, CO2 were held at the level of 1990. ...

TBT has been widely used for decades as the dominant composition of antifouling paints. The toxicity of TBT on aquatic life is very serious and many studies have shown that TBT can be lethal to aquatic organisms at quite ...

Digital terrain modeling has revolutionized the way topography is characterized and analyzed. Its applicability has widened to almost anything where topography has a role to play. On the other hand, digital soil mapping ...

The risk associated with exposure to contaminants, has drawn attention to the fate and transport of contaminants in marine sediments. Remediation of contaminated marine sediment has been necessary at several locations to ...

Abstract Mineralogical and chemical analysis of alum shale and black shale samples were done using the XRD, XRF, sulfur chemical analysis, petrographic and scanning electron microscopy. Samples from two study areas in the ...

En sedimentkjerne fra Bunnefjorden er blitt analysert for dinoflagellatcyster. Rensetiltak har ført til reduksjon av næringsstoff tilførslen til indre Oslofjord de siste 10 år. Resultat av analysen viser en forventet ...

Late Ordovician-Early Silurian magmatism, probably in a continental arc setting, was responsible for the generation of the Hurry Inlet Granite batholith of Liverpool Land, East Greenland. The emplacement of this batholith ...

Oppgaven ser på muligheten for å benytte eldre flybilder med varierende kvalitet og temporal oppløsning for å detektere signifikant overflatedeformasjon i fjellsiden Torfastaðamelar, Hlíðarfjöll på Øst Island. Ved bruk av ...

Abstract The study was mainly focused on the development of the Late Cenozoic shelf outbuilding in the northern North Sea and offshore mid-Norway. Principles of seismic sequence stratigraphy were applied as a tool to ...

This study comprises a geological reservoir characterization of paralic sandstone deposits with a case study of the Upper Jurassic Louriñha Formation in the Lusitanian Basin, which is an Atlantic rift basin located in ...

The Lusitanian Basin in Portugal is an Atlantic margin rift basin on the western side of the Iberian plate positioned north of Lisbon. The basin contains, among several other formations, the Upper Jurassic Louriñha Formation ...

In October 2005, massive slope failures were triggered all around Guatemala by the heavy rainfall that accompanied Hurricane Stan and unchained a series of landslides, debris flows and lahars. Two communities called Panabaj ...

Målet med denne oppgåva er å vise korleis eksemplar frå eit lokalt naturmiljø kan innarbeidast som ein del av geografiundervisninga i den vidaregåande skulen. Oppgåva er i hovudsak avgrensa til den naturgeografiske delen ...

Rifting of the Paleozoic Gondwana supercontinent during Mesozoic time ended eventually with the breakup of Africa and South America, leading to passive margin formation and to the creation of the South Atlantic Ocean (e.g. ...

Clouds cover about 70% of the earth. In 1983 the world first satellite program, called International Satellite Cloud Climatology Project (ISCCP), was established. ISCCP use geostationary and polar orbiting satellites to ...

Glaciers and ice masses are very important components of the earth system both in terms of global water storage and as climate indicators. The amount of water tied up in glaciers and ice caps is equivalent to about 69 ...

Abstract This study uses multispectral Landsat satellite imagery and a high resolution Digital Elevation Model based on 1990/95 aerial stereoimagery (Norwegian Polar Institute) to map moraines and glacier terminus positions ...

Snow avalanches are a common hazard experienced in many mountainous environments around the world during the winter months. It is therefore often of great importance to be able to predict these events to reduce the risk ...

Rainfall induced landslides is one of the most common natural hazard worldwide. Intensive rainfall and rapid snow melting caused the two landslides in Jordalsdalen in Fjærland in Western Norway. Debris flow is a global ...

Aerosol particles , such as sulfate aerosols, can act as cloud condensation nuclei (CCN). The CCN spectrum and water vapor supply in a cloud determine the cloud droplet number concentration (CDNC) and hence shortwave optical ...

I denne oppgaven er det utført en nedsynkningsanalyse av Oslo og omegn, basert på ERS SAR satellittbilder fra perioden 1992 til 2000. Analysene er utført med PSInSAR-teknikken som muliggjør interferometriske undersøkelser ...

The aim of this study is to achieve a better understanding of the deep basin and crustal configuration of the transition zone between the Møre and Vøring margins. The area selected is based on the distribution of a set of ...

Oppgavens problemstilling er å gjøre en klassifisering av resente ferskvannsdeltaer på bakgrunn av planform (geomorfologi) sett fra kart og flybilder. Klassifikasjonens anvendelighet testes på norske ferskvannsdeltaer. ...